Orange Curacao

Curaçao is a general term for orange-flavored liqueur made from
the dried peel of bitter oranges found on the Caribbean island of
Curaçao.

Curaçao can be colored orange (known as Orange Curaçao or
only Curaçao), blue (Blue Curaçao), green (Green
Curaçao) or left clear (White Curaçao). All variants
have the same flavor, with small variations in bitterness. Blue and
green Curaçao are often used to provide color to mixed drinks.